药企豪赌，肺癌下一代免疫“新药王”争夺赛已打响

Core Insights - Merck's PD-1 monoclonal antibody, Keytruda, has achieved over $20 billion in annual sales for both 2023 and 2024, solidifying its position as a leading drug in the lung cancer treatment market [2] - A competitive race is underway among pharmaceutical companies to establish the next generation of immune therapies for lung cancer, with significant advancements being made in the field [3][4] Group 1: Company Developments - Jun Zhu, CEO of Junshi Biosciences, announced promising results for their PD-L1 ADC HLX43 in treating non-small cell lung cancer (NSCLC), with an objective response rate (ORR) of 33.3% and a disease control rate (DCR) of 75.8% in squamous NSCLC patients [3] - HLX43 demonstrated even better efficacy in non-squamous patients, achieving an ORR of 48.6% and a DCR of 94.3% [3] - Junshi plans to advance at least eight Phase III clinical trials for HLX43 in the lung cancer domain [3] Group 2: Industry Trends - Lung cancer remains the leading malignancy globally, with 2.4 million new cases annually, and is a critical area for pharmaceutical breakthroughs [4] - The rise of targeted and immune therapies has transformed the treatment landscape for lung cancer, with new modalities such as ADCs, bispecific antibodies, and tumor vaccines expanding treatment options [4] - Several domestic companies, including Junshi Biosciences, CanSino Biologics, and Innovent Biologics, are competing to develop next-generation immune therapies, focusing on PD-(L)1 combinations with ADCs or PD-1 bispecific antibodies [4][5] Group 3: Clinical Research and Development - CanSino Biologics is conducting eight Phase III clinical trials for their PD-1/VEGF bispecific antibody, Ivoris, in lung cancer [6] - Innovent Biologics announced a collaboration with Takeda Pharmaceutical to co-develop a new generation immune therapy, IBI363, which targets PD-1 and IL-2α-bias [7] - Junshi's HLX43 is currently leading in global development for PD-L1 ADCs, with plans for clinical studies in cervical cancer, esophageal squamous cancer, and colorectal cancer [8]